Combined box base and damper



Dec. 18, 1928.

C. C. SHIPP COMBINED BOX BASE AND DAMPER Filed Deo. 2s

Patented Dec. 18, 1928.

UNITED STATES CLARENCE C. SHIP?, GF INDIANAPOLIS, INDIANA.

COMBINED BOX BASE AND DAMPER.

Application led December` 23, 1927. Serial No. 242,160.

This invention relates to improvements in Ventilating units for supplying fresh out- Side air to the interior of halls, school rooms and the like wherein there is a cold air duct located in a nine inch wall which duct is supplying outside air to the base of a box housing a steam radiator. The invention, while specifically adapted for use in a nine inch wall is not limited to use in a wall of that thickness.

The object of this invention is so to coinbine a damper with the box-base that it and its lever operating mechanism will be wholly contained within the boxbase and sleeveextension therefrom, all suitable for assembly `in a nine inch wall.

A further object is to hinge and cushion the damper in a secure and novel manner such as will cause it to close noiselessly and in an air-tight manner.

zu I accomplish the above and other objects which will hereinafter appear, by the means illustrated in the accompanying drawing, in

which- Fig. 1, is a view in perspective and vertical 1:5 section on the line 2-2 of Fig. 3, of a ventilating device embodying my invention.

Fig. 2, is a vertical cross section, on a larger scale, of the box-base and sleeve extension on the line 2-2 of Fig. 3. In this view the bottom door is released from its supporting spring and is held in closed position by buttons, and y Fig. 3, is a vertical lon itudinal section on the line 33 of Fig. 210e ing in the opposite direction of the arrows.

Like characters of reference indicate like parts in the several views ofthe drawings.

Referring to the drawinofs, Fig. l, shows a nine inch outside Wall 4 of rick, concrete, or other suitable material. This heretofore has been considered too narrow for the proper assembly therein of the lo'uvers and valve. VIn my invention the wall-box 5, of metal, is here shown as extending quite through the wall in which it is assembled and the assembly is made while the wall is under construction.

This wall-,box has the usual louvers 6 and wire screen 7 Above and below, at its inner edges, are the wooden nailing strips 8, 8. p

In the otherwise unobstructed Vinner interior of the wall-box a sleeve extension 9 of a base l0 of a radiator box 11 is telescopically assembled in the manner shown in Fig. l. This sleeve extension 9 is surrounded by a vertical flange 12 which limits the insertionof the sleeve extenison and provides means for securing' the box-base and sleeveto the wall byl driving nails through the flange l2 into the wooden strips 8. f

.The flange 12 is here shown as integral with the sheet metal forming the box-base, the sleeve being slipped into an' opening in the base and there retained by spot-welding it to the base. f

The box-base has a longitudinal bottom opening 13 whichy serves the purpose of a clean-out andalso provides for the admission of air from the room wherein it is desired to recirculate the air through the radiator box. It is provided with a door 14 hinged at the rear edge of the door.

The box-base has ends 15, which have slots 16 from the top down for the accommodation therein of the radiator bosses, and preferably, and as here shown, the box base is in two longitudinally divided members 17 and 18, which may be disconnected for the more ready assembly of the radiator and radiator base and box, and which box-base members 4are afterwards united by end cleats 19.

The upper edges of `the box-base support channels 22 and 21, in which the bottom edges of a box 1l are seated.

Located within the sleeve extension of the box-base is an' oblique metal partition 23, having fianges 24 which are spot-welded to the sleeve extension walls. Formed through the partition 23 is an elongated opening 22a which forms a valve opening through which outside air enters the box-base, and the oblique partition 23 constitutes the seat for a valve 24 which is hinged at its upper edge. The valve 24 comprises a-felt sheet 25 which contacts with the oblique partition 23 in a noiseless and also airtight manner when the valve is closed. Against the side of the felt remote from the partition 23 is a met-al plate 26, the upper edge of which is rolled around a hinge rod 27, The roll is cut away in several places for the attachment of corresponding' hinge leaves 28, which comprise metal strips bent double and looped at their bends around the hinge rod 27. The top edge of the felt sheet 25 is bent around the hinge just described and is continued between the hinge leaves 28 and the sleeve extension as shown in Fig. 2. A inet-al stiffening bar 29 extends across the sleeve extension against the leaves 28 and felt extension, and the assembly is retained by bolts 30. Preferably an angle cover-plate 31 will be retained by the bolts 30, andthe edge of plate 3l next to the valve will project beyond bar 29 to form an elastic stop for thevalve. Bolted to the other side of the ielt sheet 'from the plate 2G is a lnctal plate 32, to which a hinge-block 33 is fastened. A; similar hinge-block 3e is fastened to the inside bottom of the sleeve cX- tension, and to the latter the end of a lever 35 is pivoted. The lever 35 is here shown as formed out ot a single bar bent double, the two contacting endsbeing the pivot end ci the lever and the two members beingl spread apart for the rest of the length ol the lever, and being provided with a series ot holes. The lever 35 is connected with the hingebloclr 33 on the valve or damper-plate by an arm 36. This arm 3G is in two longitudinally separable parts or bars, which are united by bolts 38, 38. A series of holes are provided through both members whereby the length of the arm may be varied to regulate the movement of the damper plate. A chain 39 is connected with the end ot the lever 35 and passing around pulley 40 and thence up and over pulleys 41 and 42, extends outside of tbe radiator box and terminates with a hand pull 43 by manipulating which the damper plate may be opened or closed.

The door 14: previously described as controlling the opening at' the bottom of the box-base, opens automatically by gravity whenever the damper or valve 24 is closed, but when the latter is opened the door 14 is closed by a spring i4 connecting the plate with the free end of the lever. The length of the spring is such as to allow the door to open freely when the damper plate is closed.

When it is not desired to open the door 14' automatically as above described, it may be fastened by buttons a6. The spring` 4:4 is then preferably disconnected from the door or entirely removed. Then theopening is used only7 asa clean-out and not for reheating theair in the room.

The damper or valve 24 may be operated automatically by thermostatic means, not

shown, instead of manually.

While I have here described the bestembodiment of my invention now known to me in considerable detail my inventionis capable of modifications in structure and it is not my desireto be limited tothe specific construction here shown any more than is required by the following claims.

I claim:

1. The combination. with a wall box, of a radiator box base having a sleeve extension and an outside vertical flange, said extension being operatively assembled within the wall boxinto contact with the llange, an air cutofi valve located in the sleeve extension and means for openingr and closing the valve.

2. The combination with a wall box, having louvers in its outer end, of a radiator box base having an attached sleeve .xtension and an outside vertical flange which sleeve extension is telescopically assemlxled in the inner end of the wall box into contact with the flange, means for fastening the flange 1o the wall, a. valve seat located in the :sleeve eatension, a valve cooperating with the seat and mea ns ,tor opening and closing the valve.

S. The combination with a wall box, of a radiator box base having' a sleeve extension outside vertical Flange on the sleeve extcz said sleeve extension telescoljiically assemicd within the wall hoi; into contact ot the flange, a valve seat in the sleeve extension, a hinged valve cooperating with the neat, a lever pivoted at one end, a chain lor elevating the free end of the lever, and an arm pivoted at one-end to the lever and atthe other to the valve.

el. The combination with a wall box, ot a radiator box-base having a bottom opening and also having a lateral sleeve extension out side vertical llange on the sleeve extension, said sleeve extension telcscopically assembled within the wall-box, into contact of the llange, means for fastening the flange to the wall, a door to close the opening hinged at its rear edge to the box-base, a valve seat in the sleeve extension, a hinged valve c0- operating with the seat, a lever inthe boxbase pivoted at one end, means for elevating the tree end of the lever, means connected with the lever for opening the hinged valve and means connected with the lever for closing the door when the valve is open.

5. Thc'combination with a wall-box, of a radiator box base having a lateral sleeve extension .telescopically assembled within the wall-box, a flange within the sleeve at sides top and bottom forming a valve seat, a valve cooperating with said seat comprising a pair of metal plates between which a sheet of felt is retained said l'elt contacting the valve scat and that plate most remote from the seat being hinged to the sleeve extension and means for opening and closing the valve.

G. The combination with a wall-box, of a radiator box-base having a lateral sleeve extension telescopically assembled within the wall-box, a flange within the sleeveat sides top and bottom forming a 'alve seat, a valve cooperating with said seat comprising a pair of metal plates between which a sheet of felt is retained said felt contacting the valve seat, a hinge rod, the plate most remote from the valve being rolled at the top around the rod, strap leayes engaging the rod, bolts securing the strap leaves to the sleeve extension and means l'or opening and closing the valve.

7. The combination with a wall-box, of a radiator box-base having a lateral sleeve extension telescopically assembled within the wall-box, a flange within the sleeve at sides top and bottom forming a valve seat, a valve cooperating with said seat comprising a pair of metal plates between which a sheet of felt is retained said felt contacting the valve seat and having a top edge extension, a hinge rod,

said plate most remote from the valve being rolled at its top around the rod, strap leaves `engaging the rod and resting upon the felt extension, and means for securing the strap leaves and felt to the top of the sleeve extension.

8. A radiator' box-base having a` lateral sleeve extension, a angewithin the sleeve at top, bottoni and both sides sloping from the top outwardly to the bottom and orniing'a valve seat, a valve hinged at its upper edge i and seated by gravity on the upper side of lthe sloping seat, a hinge rod, said valve cornprising a pair of metal plates, a felt sheet between the platesmaking direct Contact with the sloping seat and having a top edge extension, that plate most remote from the seat being rolled at its top edge around the hingerod, metal straps bent double around the hinge-rod, a stiffeningbar, and bolts passing through the ba1','straps, felt-extension and sleeve extension to secure the assembly.

9. A radiator box-base having a lateral sleeve extension, a flange within the sleeve at i rod, a stiffening-bar, bolts passing through the bar, straps, felt-extension and sleeve extension to secure the assembly and a sheet metal plate proj ecting from the stiifening bar toward the valve against which the valve eontaets.

In testimony whereof I aliX my signature.

` CLARENCE C. SHIPP. 

